Home » Aptitude » Pipes and Cistern

Three pipes A, B and C can fill a tank from empty to full in 30 minutes, 20 minutes, and 10 minutes respectively. When the tank is empty, all the three pipes are opened. A, B and C discharge chemical solutions P,Q and R respectively. What is the proportion of the solution R in the liquid in the tank after 3 minutes?

Correct Answer: 6 11

Explanation:


Part filled by (A + B + C) in 3 minutes = 3 1 + 1 + 1 = 3 x 11 = 11 .
30 20 10 60 20



Part filled by C in 3 minutes = 3 .
10



∴ Required ratio = 3 x 20 = 6 .
10 11 11


← Previous Question Next Question→

More Questions from Pipes and Cistern

Discussion & Comments

No comments yet. Be the first to comment!
Join Discussion